Shinyproxy & Keycloak - ERR_TOO_MANY_REDIRECTS

Question

I am learning about Keycloak and ShinyProxy.

I am using Docker. I have a container where Keycloak is working (from Keycloak Docker image) and I have another container where ShinyProxy is working (https://github.com/openanalytics/shinyproxy-config-examples/tree/master/02-containerized-docker-engine).

I tested ShinyProxy (localhost:8180/) using authentication: simple and it was working.

Then I changed application.yml (authentication: keycloak):

---

proxy:
  port: 8180
  authentication: keycloak
  admin-groups: admins
  users:
  - name: jack
    password: password
    groups: admins
  - name: jeff
    password: password
  docker:
      internal-networking: true
  specs:
  - id: 01_hello
    display-name: Hello Application3
    description: Application which demonstrates the basics of a Shiny app
    container-cmd: ["R", "-e", "shinyproxy::run_01_hello()"]
    container-image: openanalytics/shinyproxy-demo
    container-network: sp-example-net
  - id: 06_tabsets
    container-cmd: ["R", "-e", "shinyproxy::run_06_tabsets()"]
    container-image: openanalytics/shinyproxy-demo
    container-network: sp-example-net
  - id: anaApp
    display-name: anaApp
    container-cmd: ["R", "-e", "shiny::runApp('/root/euler2')"]
    container-image: anaid
    container-network: sp-example-net
  keycloak:
    realm: shinyproxy
    auth-server-url: http://localhost:8080/auth
    resource: shinyproxy
    credentials-secret: 8af5deba-c9f1-4358-881b-3981460aded0


logging:
  file:
    shinyproxy.log

I created a realm called shinyproxy and a client called shinyproxy in Keycloak. I have as a Valid redirect URIs: http://localhost:8180/*

KeyCloak is working in localhost:8080/auth/

Shinyproxy is using port localhost:8180

If I go to localhost:8180/ , I see the Log in page, but after I logged in I got this error: "ERR_TOO_MANY_REDIRECTS"

I don't know if the Valid redirect URIs or the auth-server-url is wrong.

I would appreciate your help.

Thank you, Ana